Analyse the character of Skellig.

Skellig's nature is gradually—but never completely—revealed. In the beginning, he is depicted as a pale, homeless man wearing a filthy black suit, eating flies. He suffers from arthritis, which by now is so severe that he cannot move by himself. At first, he rejects Michael's offer to help and refuses to say his name. He warms up when Michael and Mina bring him to an abandoned house to keep him safe. They also discover his wings, which indicate that he is an angel; however, Skellig never confirms this. He has a close connection to the owls and the spiritual world. The owls feed him, and he uses his newly gained strength to perform magic rituals with the children. Eventually, he revives Michael's sister and thanks the children for their kindness, leaving them feathers as a lucky charm.